X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m14.mx.aol.com ([64.12.138.204] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2354254 for flyrotary@lancaironline.net; Thu, 27 Sep 2007 00:30:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.204; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m14.mx.aol.com (mail_out_v38_r9.3.) id q.bfb.21fbfa51 (65099) for ; Thu, 27 Sep 2007 00:30:00 -0400 (EDT) From: WRJJRS@aol.com Message-ID: Date: Thu, 27 Sep 2007 00:29:59 EDT Subject: Re: [FlyRotary] cowling protection To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1190867399" X-Mailer: 9.0 SE for Windows sub 5042 X-Spam-Flag: NO -------------------------------1190867399 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 9/26/2007 6:05:38 PM Pacific Standard Time, downing.j@sbcglobal.net writes: What is the rule of thumb for the heat shield between the exhaust pipe and the cowling. I have fiberfrax to glue on and planned on covering it with .016 SS, the pipe is 2 1/2 SS, do I need a shield 5 inches wide? Thankyou JohnD John, insulation is a good idea but the best way to prevent radiated heat is to use a heat sheld. The more space you can give it (on BOTH sides) the better. Feeding a small air bleed in the area to cary off the heat is also a good idea. The air bleed doesn't have to be big, it just has to keep the air moving. Bill Jepson ************************************** See what's new at http://www.aol.com -------------------------------1190867399 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 9/26/2007 6:05:38 PM Pacific Standard Time,=20 downing.j@sbcglobal.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

What is the rule of thumb for the heat sh= ield=20 between the exhaust pipe and the cowling. I have fiberfrax to=20= glue=20 on and planned on covering it with .016 SS, the pipe is 2 1/2 SS, do I nee= d a=20 shield 5 inches wide? Thankyou=20 JohnD

John, insulation is a good idea but the best way to prevent radiated he= at=20 is to use a heat sheld. The more space you can give it (on BOTH sides) the=20 better. Feeding a small air bleed in the area to cary off the heat is also a= =20 good idea. The air bleed doesn't have to be big, it just has to keep the air= =20 moving.

Bill Jepson

See what'= s new at AOL.co= m and Make AOL Your Homepage.

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